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I thought a little about this when I was checking the pattern. I ran the adjustment all the way down to take the slack out of the lifter before I began checking.

The rockers are shimmed, came that...

I did check the roller pattern with a marker when I assembled it. It was very close to centered, not perfect, but nothing I would consider a problem. Definitely not close to either edge at all. I...

I'm positive that the cam gear is not off a tooth.

I think the easiest thing would be for me to pull the covers, loosen the rocker adjusters and adjust them to 1/2 turn after zero lash like most...

Pushrod adjustable. I don't know the brand. I don't remember seeing part number on the lifters but the appeared to be the Delphi LS7 lifters. Threads were 10x1.25.

Springs are .660 dual platinum BTR springs.

No weird popping noises when its happening. Just a sudden decrease in acceleration and you can hear the engine just sounds like it doesn't want to rev...

I'm going to be moving soon so I am not planning on taking it back apart immediately. I am going to keep poking around some easier stuff to make sure I don't have some other issue going on. Here is a...

I understand that. I've got the tune pretty well dialed in. Finally got my wideband on the scanner yesterday. Tried turning off my 2 step module, that made no difference, have more timing in it, fuel...

Please don't say that haha.

Exhaust is American Racing 1-7/8 longtubes Catless with matching X-Pipe and mid pipes. No Mufflers as of yet.

I changed the engine because the last one injested water. Just removed the TB and...

I bought the long block out of another car that was being parted out. Engine builder said it was put together to turn 7500-8000 rpm. The car before was using nitrous and shifting over 7k rpm. The...

PRC 237cc cathedral heads with their supplied .660 springs.

Engine is 11.4:1. BTR 400+ camshaft. Stock LS6 intake, Stock TB, Vararam CAI. I have a wideband but it keeps disconnecting from my scanner. I've peeked at it while on the throttle and the AFR always...

I have all of my limiters maxed out as far as I can tell but the car still hits a wall right at 6500 rpm. Just seeing if anyone sees something I missed or if it may be a mechanical issue. Attached is...

Here is a current tune with the new injectors and more pids active, still couldn't get the wideband to read on the scanner.
Idles/catches idle ok (not good) with a/c off. Just dies with the a/c on. ...

Just noticed I didn't have the STIT AND LTIT logged, sorry. I just added them to my channels for next time I crank it up.

I have a wideband but it doesn't always work on the scanner. Its really like 50/50 if it will show up on the log. It reads a little lean at idle but there is also alot of overlap so I kind of expect...

I bought Deatschwerks 800cc injectors. They're half the price of ID1050x and they worked well on my Coyote car.

I wanted to get it running with some of the stock stuff because the last 5 cars I've...

I just finished wrapping up a 408 stroker into my c5 Corvette. it has 11.5:1 compression, PRC 237cc heads, BTR 400+ NA V2 cam. 6 speed car, still have stock LS6 intake and throttle body, stock...

Ok. This is my first time that the wideband has read this far off at low rpm so it had me worried. Of course I haven't tuned nearly as many vehicles as alot of you guys. All of that makes sense. I'll...

2003 C5 6 Speed. Stock car, Cat delete, AEM 30-0300 wideband.
I tuned the MAF and VE tables separately with fuel trims off.

When I turn the FT back on the car pulls ~8-10% fuel out right away....

Bump. we got better injector data for what we have and that cleared alot of issues. Right not we can't get the adaptive idle to catch when we let off of the gas. I've tried using the follower, spark...

Current situation. Starts and idles good, beginning to take throttle better with every VE adjustment, I can not get it to catch the idle correctly after you rev it, and it hangs up pretty bad.
...

@5FDP .. The MAF isnt working because I have it unplugged. I ended up failing it and the car would idle and stay running.
The injectors are used stock LS3 injectors.

@serius.. I dont remember...

That made some difference but still does not run any longer.

I was told this pcm came from a dbc truck. I didn't even think to look at that.